Apparatus for the control of brake pressure
    2.
    发明授权
    Apparatus for the control of brake pressure 失效
    用于控制制动压力的装置

    公开(公告)号:US4775192A

    公开(公告)日:1988-10-04

    申请号:US39345

    申请日:1987-04-17

    摘要: An apparatus is disclosed for the control of brake pressure in a trailer pulled by a tractor. The apparatus includes a two-circuit controllable relay valve as the trailer control valve. The first circuit is controlled by the brake valve of the tractor with the pressure from the brake apparatus of such tractor. The second circuit can be optionally-connected to a distribution valve with a pressure medium source with a specified pressure or with atmosphere. Activation of the distribution valve is controlled so that the distribution valve connects the second circuit with the pressure medium source before or at the beginning of the activation of the first circuit. With this apparatus, the brake pressure can be increased in the brake apparatus of the trailer prior to increase of the brake pressure in the brake apparatus of the tractor. The level of brake pressure increased first in the brake unit of the trailer can be regulated by a set screw acting on the trailer control valve.

    摘要翻译: 公开了一种用于控制由拖拉机牵引的拖车中的制动压力的装置。 该装置包括作为拖车控制阀的双回路可控继动阀。 第一回路由拖拉机的制动阀与来自这种拖拉机的制动装置的压力控制。 第二回路可以可选地连接到具有指定压力或大气的压力介质源的分配阀。 控制分配阀的激活,使得分配阀在第一回路的启动之前或开始时将第二回路与压力介质源连接。 利用该装置,在拖拉机的制动装置中的制动压力增加之前,可以在拖车的制动装置中增加制动压力。 拖车制动单元中首先提高的制动压力水平可以通过作用在拖车控制阀上的定位螺丝来调节。

    Relay valve
    3.
    发明授权
    Relay valve 失效
    继电阀

    公开(公告)号:US4627668A

    公开(公告)日:1986-12-09

    申请号:US651300

    申请日:1984-09-17

    申请人: John J. Camm

    发明人: John J. Camm

    IPC分类号: B60T15/20 B60T15/02

    CPC分类号: B60T15/20

    摘要: A relay valve for a vehicle brake system having an operating piston which moves in one direction in response to entry of a control pressure into one part of the valve and which by that movement causes an orifice to open whereby working pressure is allowed to enter another part of the valve and pass from there through various outlets. There are six outlets and each is connected to a respective brake assembly of the vehicle brake system. A damping piston is connected to the operating piston so as to move therewith and is subjected to the same pressure as that acting against one side of the operating piston but in a manner such as to provide resistance to movement of the operating piston in the aforementioned one direction.

    摘要翻译: 一种用于车辆制动系统的继动阀,其具有操作活塞,所述操作活塞响应于控制压力进入所述阀的一部分而在一个方向上移动,并且所述操作活塞通过所述移动导致孔打开,从而允许工作压力进入另一部分 并通过各种出口从那里通过。 有六个出口,每个出口连接到车辆制动系统的相应制动组件。 阻尼活塞连接到操作活塞,以便与其一起移动并且受到与作用在操作活塞的一侧相同的压力,但是以提供对上述操作活塞的运动的阻力的方式 方向。

    Railway brake control system arranged to limit maximum brake pressure
during combined independent and automatic brake operation
    4.
    发明授权
    Railway brake control system arranged to limit maximum brake pressure during combined independent and automatic brake operation 失效
    铁路制动控制系统布置成在组合的独立和自动制动操作期间限制最大制动压力

    公开(公告)号:US4586755A

    公开(公告)日:1986-05-06

    申请号:US647091

    申请日:1984-09-04

    申请人: Robert J. Worbois

    发明人: Robert J. Worbois

    CPC分类号: B60T15/36 B60T15/20

    摘要: A brake control system for a railway vehicle having separately operated independent and automatic brake controls for controlling brake pressure via a double check valve and a multi-piston relay valve, wherein an adjustable regulating valve is set to exhaust the independent brake control pressure acting on one piston of the multi-piston relay valve when the relay valve delivery pressure (brake cylinder pressure) exceeds a predetermined value, to thereby limit the maximum brake cylinder pressure attainable from the combined independent and automatic brake controls unless the automatic brake pressure exceeds that predetermined value.

    摘要翻译: 一种用于铁路车辆的制动控制系统,其具有单独操作的独立和自动制动控制器,用于经由双止回阀和多活塞继动阀控制制动压力,其中设置可调节调节阀以排出作用在一个上的独立制动控制压力 当继动阀输送压力(制动缸压力)超过预定值时,多活塞继动阀的活塞,从而限制从组合的独立和自动制动控制可获得的最大制动缸压力,除非自动制动压力超过该预定值 。

    Brake control system and apparatus for railway cars
    5.
    发明授权
    Brake control system and apparatus for railway cars 失效
    铁路车辆制动控制系统及装置

    公开(公告)号:US4169634A

    公开(公告)日:1979-10-02

    申请号:US877998

    申请日:1978-02-15

    申请人: William R. King

    发明人: William R. King

    IPC分类号: B60T8/18 B60T15/20

    摘要: In a system and apparatus for railway car brake control, a brake control apparatus for cars having sprung and unsprung portions is interposed between a train brake valve in a brake pressure supply line and a brake cylinder line of each railway car. A supply chamber is connected to the brake pressure supply line and a control chamber is connected to the brake cylinder line. The chambers are abutted by surfaces of a spring biased diaphragm having different cross-sectional areas. A first valve is responsive to positioning of the diaphragm, which is also selectively fluid biased by a strut cylinder mounted between the sprung and unsprung portions of the railway car, to effect predetermined relationships between pressure drop in the brake pressure supply line and pressure drop in the brake cylinder line. When the particular car is loaded, the brake cylinder line experiences a pressure drop substantially equal to that effected in the brake pressure supply line by the train brake valve. When the particular car is empty, the brake cylinder line experiences a pressure drop smaller than the pressure drop in the brake pressure supply line by the inverse ratio of the diaphragm surface areas abutting the control and supply chambers, respectively. The strut cylinder senses the extent of car loading so that the brake cylinder line of a partially loaded car experiences a proportional pressure drop over the entire range of brake pressure supply line pressure drops.

    摘要翻译: 在用于铁路车辆制动控制的系统和装置中,具有簧上和簧下部分的汽车的制动控制装置插入在制动压力供应管线中的列车制动阀和每个铁路车辆的制动缸管线之间。 供应室连接到制动压力供应管线,并且控制室连接到制动缸管路。 这些腔室与具有不同截面面积的弹簧偏压隔膜的表面邻接。 第一阀响应于隔膜的定位,其也由安装在铁路车辆的簧上和簧下部分之间的支柱缸选择性地流体偏压,以实现制动压力供应管路中的压降和压降之间的预定关系 制动缸系列。 当特定轿厢被装载时,制动液压缸管线经受与列车制动阀在制动压力供给管路中所产生的压降基本相等的压降。 当特定轿厢为空时,制动液压缸管路的压降比制动压力供给管路的压力降分别靠近控制室和供给室的隔膜表面积的倒数比。 支柱缸感测到汽车负载的程度,使得部分装载的汽车的制动缸线路在制动压力供应管线压降的整个范围上经历比例压降。

    Vehicle air brake system with emergency features
    6.
    发明授权
    Vehicle air brake system with emergency features 失效
    车辆空气制动系统具有应急功能

    公开(公告)号:US4121873A

    公开(公告)日:1978-10-24

    申请号:US738351

    申请日:1976-11-03

    申请人: Harold Durling

    发明人: Harold Durling

    IPC分类号: B60T13/26 B60T15/20 B60T13/44

    摘要: An air brake system for a vehicle having front service and parking brakes, and rear service and parking brakes, includes separate front service, rear service and parking air systems. In the event of a failure in either service air system, normal operation of the service brake control will automatically operate the parking brakes associated with the failed service brakes.

    摘要翻译: 具有前部服务和驻车制动器以及后部维修和驻车制动器的车辆的空气制动系统包括单独的前部服务,后部服务和驻车空气系统。 在任何一个服务空气系统发生故障时,行车制动控制器的正常运行将自动运行与失效的行车制动器相关联的停车制动器。

    Relay valve combined with a load-sensing proportion valve
    7.
    发明授权
    Relay valve combined with a load-sensing proportion valve 失效
    继电器阀与负载感应比例阀相结合

    公开(公告)号:US4045094A

    公开(公告)日:1977-08-30

    申请号:US621594

    申请日:1975-10-10

    摘要: A combined load-sensing proportion and relay valve for an air brake system including a valve disk which has an exhaust passage in its axial center and is adapted to hold the valve in normally closed position, and a control piston unit which is actuated by an indicated pressure from a brake valve to move the valve disk and open the valve. The control piston unit includes a first pressure-sensing piston for controlling the valve-opening action of the valve disk and a second pressure-sensing piston coaxially connected to the first piston via a spring therebetween. A stroke adjusting device is provided to control the axial movement of the second piston correspondingly to the payload of the vehicle.

    摘要翻译: 一种用于空气制动系统的组合负载感测比例和继动阀,包括阀盘,该阀盘在其轴向中心具有排气通道并且适于将阀保持在常闭位置;以及控制活塞单元,其由指示的 来自制动阀的压力来移动阀盘并打开阀门。 控制活塞单元包括用于控制阀盘的开阀动作的第一压力感测活塞和通过其间的弹簧与第一活塞同轴连接的第二压力感测活塞。 提供了一种行程调节装置,用于控制与车辆有效载荷相对应的第二活塞的轴向运动。

    Hydraulic and air operated relay valve
    8.
    发明授权
    Hydraulic and air operated relay valve 失效
    液压和空气操作继电器阀

    公开(公告)号:US3712340A

    公开(公告)日:1973-01-23

    申请号:US3712340D

    申请日:1971-03-19

    发明人: DEEM B

    摘要: In a braking arrangement especially adapted for tractor-trailer vehicle brakes wherein the tractor includes hydraulically operated brakes and the trailer is equipped with compressed air operated brakes, the provision of a relay valve on the tractor for controlling the trailer brakes, the relay valve being selectively operable by hydraulic pressure when the tractor brakes are applied or by a separate source of compressed air carried by the tractor.

    摘要翻译: 在特别适用于拖拉机 - 拖车车辆制动器的制动装置中,其中拖拉机包括液压操纵的制动器,并且拖车配备有压缩空气操作的制动器,在拖拉机上设置用于控制拖车制动器的继动阀,继动阀是选择性地 当拖拉机制动器被施加时或通过拖拉机承载的单独的压缩空气源可操作。